Who's getting around? Assessing species diversity and phylogeography in the widely distributed lichen-forming fungal genus Montanelia (Parmeliaceae, Ascomycota)

doi:10.1016/j.ympev.2015.04.029

	Who's getting around? Assessing species diversity and phylogeography in the widely distributed lichen-forming fungal genus Montanelia (Parmeliaceae, Ascomycota)
	Leavitt,Steven D.; Divakar,Pradeep K.; Ohmura,Yoshihito; Wang,Li-song; Esslinger,Theodore L.; Lumbsch,H. Thorsten
	2015-09-01
发表期刊	MOLECULAR PHYLOGENETICS AND EVOLUTION
卷号	90 页码:85-96
摘要	Brown parmelioid lichens comprise a number of distinct genera in one of the most species-rich families of lichen-forming fungi, Parmeliaceae (Ascomycota). In spite of their superficial similarity, a number of studies of brown parmelioids have provided important insight into diversification in lichen-forming fungi with cosmopolitan distributions. In this study we assess species diversity, biogeography and diversification of the genus Montanelia, which includes alpine to temperate saxicolous species. We sampled each of the five known species, four of which are known from broad, intercontinental distributions. In order to identify potential biogeographical patterns, each broadly distributed species was represented by individuals collected across their intercontinental distributions. Molecular sequence data were generated for six loci, including three nuclear protein-coding markers (MCM7, RPB1, and RPB2), two nuclear ribosomal markers (ITS and nrLSU), and a fragment of the mitochondrial small subunit. We used three sequence-based species delimitations methods to validate traditional, phenotype-based species and circumscribe previously unrecognized species-level lineages in Montanelia. Relationships among putative lineages and divergence times were estimated within a coalescent-based multi-locus species tree framework. Based on the results of the species delimitation analyses, we propose that the genus Montanelia is likely comprised of six to nine species-level lineages, including previously unrecognized species-level diversity in the nominal taxa M. panniformis and M. tominii. In contrast, molecular sequence data suggest that M. predisjuncta may be conspecific with the widespread taxon M. disjuncta in spite of distinct morphological differences. The rate-based age estimation of the most recent common ancestor of Montanelia (ca. 231 Ma) was similar to previous estimates based on the fossil record. Furthermore, our data suggest that diversification in Montanelia occurred largely during the Neogene. At least three Montanelia species are broadly distributed throughout Asia, Europe, and North America with no evidence of phylogeographic substructure. In contrast to broadly distributed Montanelia species, our study suggests Pleistocene-dominated diversification and complex biogeographic history in the M. tominii group. Our analyses provide additional insight for understanding diversification and uncovering cryptic diversity in cosmopolitan species of lichen-forming fungi. (C) 2015 Elsevier Inc. All rights reserved.
关键词	Abgd Cosmopolitan Species Fungi Gymc Ptp Species Delimitation
DOI	10.1016/j.ympev.2015.04.029
收录类别	SCI
语种	英语
WOS记录号	WOS:000357965100007
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/24994
专题	中国科学院东亚植物多样性与生物地理学重点实验室
推荐引用方式 GB/T 7714	Leavitt,Steven D.,Divakar,Pradeep K.,Ohmura,Yoshihito,et al. Who's getting around? Assessing species diversity and phylogeography in the widely distributed lichen-forming fungal genus Montanelia (Parmeliaceae, Ascomycota)[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2015,90:85-96.
APA	Leavitt,Steven D.,Divakar,Pradeep K.,Ohmura,Yoshihito,Wang,Li-song,Esslinger,Theodore L.,&Lumbsch,H. Thorsten.(2015).Who's getting around? Assessing species diversity and phylogeography in the widely distributed lichen-forming fungal genus Montanelia (Parmeliaceae, Ascomycota).MOLECULAR PHYLOGENETICS AND EVOLUTION,90,85-96.
MLA	Leavitt,Steven D.,et al."Who's getting around? Assessing species diversity and phylogeography in the widely distributed lichen-forming fungal genus Montanelia (Parmeliaceae, Ascomycota)".MOLECULAR PHYLOGENETICS AND EVOLUTION 90(2015):85-96.

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